Surrogate Weights in Group MCDM Decisions

Lakmayer, S. & Danielson, M. (2027). Surrogate Weights in Group MCDM Decisions. In: Perspectives on Group Decision and Negotiation: Theory, Technology, and Practice. Eds. Wachowicz, T., Morais, D.C., & Ke, G.Y., pp. 91-104 Springer Cham. ISBN 978-3-032-29551-4

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Abstract

This paper studies the effect of surrogate weights for ordinal criteria information within additive models of multi-criteria decision analysis for group decision-making. Therefore, we compare the application of surrogate weights at different stages of the decision-making process and compare the outcomes. The results are along two dimensions. First, they show at which calculation step the aggregation of different decision-makers in the group is most efficient, where preference aggregation via summing up surrogate weights or final utilities clearly outperforms aggregation of individual ordinal rankings. Second, they also show which surrogate method generally performs the best in group settings. To sum up, we conclude that surrogate weights provide an adequate and easily applicable means of aggregating preferences in a group decision setting.

Item Type:	Book Section
Research Programs:	Advancing Systems Analysis (ASA) Advancing Systems Analysis (ASA) > Cooperation and Transformative Governance (CAT)
Depositing User:	Luke Kirwan
Date Deposited:	01 Jul 2026 08:14
Last Modified:	01 Jul 2026 08:14
URI:	https://pure.iiasa.ac.at/21697

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